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[sin-ahr-throh-sis] /ˌsɪn ɑrˈθroʊ sɪs/
noun, plural synarthroses
[sin-ahr-throh-seez] /ˌsɪn ɑrˈθroʊ siz/ (Show IPA).
immovable articulation; a fixed or immovable joint; suture.
Origin of synarthrosis
1570-80; < New Latin < Greek synárthrōsis, equivalent to synarthrō- (variant stem of synarthroûsthai to be joined by articulation, equivalent to syn- syn- + árthro(n) joint + -esthai infinitive suffix) + -sis -sis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for synarthrosis


noun (pl) -ses (-siːz)
(anatomy) any of various joints which lack a synovial cavity and are virtually immovable; a fixed joint
Derived Forms
synarthrodial, adjective
synarthrodially, adverb
Word Origin
via New Latin from Greek sunarthrōsis, from sunarthrousthai to be connected by joints, from sun-syn- + arthron a joint
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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synarthrosis in Medicine

synarthrosis syn·ar·thro·sis (sĭn'är-thrō'sĭs)
n. pl. syn·ar·thro·ses (-sēz)

  1. See immovable joint.

  2. See movable joint.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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